CN109395664A - A kind of column activated coke granulating system and method - Google Patents
A kind of column activated coke granulating system and method Download PDFInfo
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- CN109395664A CN109395664A CN201811578099.8A CN201811578099A CN109395664A CN 109395664 A CN109395664 A CN 109395664A CN 201811578099 A CN201811578099 A CN 201811578099A CN 109395664 A CN109395664 A CN 109395664A
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- 239000000571 coke Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 76
- 238000005303 weighing Methods 0.000 claims abstract description 57
- 239000000843 powder Substances 0.000 claims abstract description 34
- 239000007787 solid Substances 0.000 claims abstract description 32
- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 238000005469 granulation Methods 0.000 claims abstract description 17
- 230000003179 granulation Effects 0.000 claims abstract description 17
- 230000008676 import Effects 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000012216 screening Methods 0.000 claims description 20
- 239000011261 inert gas Substances 0.000 claims description 16
- 239000000428 dust Substances 0.000 claims description 15
- 238000004898 kneading Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 7
- 210000004534 cecum Anatomy 0.000 claims description 6
- 239000008247 solid mixture Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000012795 verification Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 230000001404 mediated effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000012797 qualification Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000011143 downstream manufacturing Methods 0.000 description 2
- 235000003642 hunger Nutrition 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 230000037351 starvation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000011269 tar Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- -1 power generation Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Glanulating (AREA)
Abstract
The invention belongs to activated coke preparation technical fields, more particularly to a kind of column activated coke granulating system, including set gradually Pneumatic Feeder, proportioner, mediate prilling granulator, recycle material-returning device and summarize conveying device, the qualified material outlet of circulation material-returning device is connect with the receiving opening for summarizing conveying device, and the unqualified material outlet for recycling material-returning device is connect with the returning charge import for mediating prilling granulator.The present invention also provides a kind of column activated coke prilling process; solid powder is sent by the way of strength to caching feed bin; it is discharged into weighing silo again and carries out single weighing; spiral kneader is fed again to mix well, squeeze with liquid charging stock; the paste mixture of formation is sent by screw conveyor to being granulated in rolling granulating machine; screened machine classification, the qualified remittance material belt type conveyer that feeds is sent to subsequent handling, underproof to be back to circulation granulation in screw conveyor.The high production efficiency of column activated coke granulating system provided by the invention and method, product property are stablized.
Description
Technical field
The invention belongs to activated coke preparation technical fields, and in particular to a kind of column activated coke granulating system and method.
Background technique
With the increasingly serious increasingly raising with environmental requirement of environment situation, column activated coke dry flue gas desulphurization denitration exists
The fields such as steel, power generation, chemical industry are using increasingly extensive, however the preparative capacibility of activated coke production at present is lower, and market is to column cigarette
It is huge that gas purifies activated coke demand.
Traditional column activated coke production granulating system powder carry transhipment link is more, leakproofness is poor, environment fugitive dust is serious, deposits
It is dangerous in dust spontaneous combustion, mediate granulation process by rule of thumb ingredient, be granulated that discontinuous, Mechanization Level is extremely low, manufacturing enterprise is in the majority
Exist in the form of individual workship, it is low to ultimately cause that granulating system production environment is very poor, standard, production efficiency is not achieved in dust emission
Under, the unstable situation of product property.
Summary of the invention
In order to overcome the shortcomings of the prior art described above, the object of the present invention is to provide a kind of cleanings of production environment, powder
The stable continuous granulation of dirt discharge index qualification, high production efficiency, product property, Scientific Measurement column activated coke granulating system
And method.
To achieve the above object, the technical scheme is that a kind of column activated coke granulating system, including Pneumatic feeding
Device, proportioner mediate prilling granulator, recycle material-returning device and summarize conveying device, and the Pneumatic Feeder goes out
The feed inlet of material mouth and proportioner connection, the discharge port of the proportioner and it is described mediate prilling granulator solid powder into
Mouth connection, the discharge port for mediating prilling granulator are connect with the feed inlet of the circulation material-returning device；The circulation is returned
The qualified material outlet of material device is connect with the receiving opening for summarizing conveying device, and the unqualified material of the circulation material-returning device goes out
Mouth is connect with the returning charge import for mediating prilling granulator.
Further, the Pneumatic Feeder includes pneumatic conveying main pipe and several pneumatic conveying branch pipes, each described
One end of pneumatic conveying branch pipe is connect with the pneumatic conveying main pipe, and the other end is connected with the corresponding proportioner；Each institute
It states and is equipped with branch pipe shut-off valve on pneumatic conveying branch pipe；The pneumatic conveying main pipe is equipped with main pipe shut-off valve, the pneumatic transporting
The end for sending main pipe is cecum.
Further, the proportioner includes caching feed bin and weighing silo, the feed inlet of the caching feed bin and institute
The discharge port connection of Pneumatic Feeder is stated, the discharge port of the caching feed bin passes sequentially through caching feed bin gate valve and frequency conversion rotation
Turn feed valve to connect with the feed inlet of the weighing silo, the discharge port of the weighing silo passes through weighing silo gate valve and pinches
Close the solid powder import connection of prilling granulator.
Further, the top of the caching feed bin is equipped with for carrying out to the dusty gas in the caching feed bin
The bottom of the roof scrubber being discharged after filter, the caching feed bin is equipped with along the circumferentially equally distributed storehouse of caching feed bin outer wall
Wall vibrations device.
Further, inert gas shielding mechanism, inert gas shielding mechanism packet are equipped in the caching feed bin
The annular inert gas duct being circumferentially arranged along the caching feed bin inner wall is included, if being connected on the annular inert gas duct
Dry inert gas nozzle.
Further, the weighing silo is equipped with weighing sensor and for placing standard test weight periodically to the title
The check code platform that heavy burder storehouse precision is calibrated.
Further, the kneading prilling granulator includes spiral kneader, rolling granulating machine and for that will pinch from spiral
The paste mixture come out in conjunction machine discharge port is delivered to the screw conveyor of the entrance of rolling granulating machine, the spiral kneader
Entrance connect with the discharge port of the proportioner；The discharge port of the rolling granulating machine and it is described circulation material-returning device into
Material mouth connection.
Further, vapor interface, the vapor interface are equipped on the spiral kneader and the rolling granulating machine
It is connected with steam access tube.
Further, the circulation material-returning device includes screening machine and returning charge bucket elevator, the feed inlet of the screening machine with
The discharge port connection for mediating prilling granulator, qualified material outlet and the receiving opening for summarizing conveying device of the screening machine
The unqualified material outlet of connection, the screening machine is connect with the feed inlet of the returning charge bucket elevator, and the returning charge bucket elevator goes out
Material mouth is connect with the returning charge import for mediating prilling granulator.
The present invention also provides a kind of column activated coke prilling process, and this method comprises the following steps:
1) solid powder forms gas-solid mixture stream using compressed air as power in pipeline, and gas-solid mixture stream is through gas
Power conveying main pipe and strength delivery branch pipe are delivered in corresponding caching feed bin, as desired by the mother in pneumatic conveying main pipe
The conveying capacity of branch pipe shut-off valve control solid powder on pipe shut-off valve and strength delivery branch pipe；
2) it blows to the solid powder of caching feed bin to settle under the effect of gravity and be stored in caching feed bin, the dust-laden that blanking raises
Air solid dust after roof scrubber filters is deposited in caching feed bin, pure air emptying；
3) be stored in caching feed bin in solid powder buffered feed bin gate valve and frequency conversion rotatory feeder valve are uniformly discharged into weighing again
It weighs in feed bin, caching feed bin gate valve intermittence shutdown material stream ensures that weighing silo is called in the following text in totally stationary state
Weight, solid powder feeds spiral kneader in weighing silo after the completion of single weighing, while liquid charging stock is matched as pre-set
Blending process is completed than being sent into spiral kneader；
4) solid powder and liquid charging stock are mixed well in spiral kneader, are squeezed, to make solid powder and liquid charging stock
The paste mixture that can be used for being granulated is formed, paste mixture is delivered in rolling granulating machine by screw conveyor, through the period
Property roll, shear make paste mixture by column punch die formed column granulation material；
5) column granulation material is classified by screening machine, and the column material for meeting granularity requirements feeds remittance material belt type conveyer, is led to
It crosses weighing belt and verification chain code measures the column finished product material for feeding subsequent handling, do not meet the column finished product of granularity requirements
Material is back in screw conveyor through returning charge bucket elevator carries out circulation granulation.
Compared with prior art, the invention has the following advantages:
(1) column activated coke granulating system provided by the invention and method have production environment cleaning, dust emission qualification, production
Feature high-efficient, product property is stable；
(2) solid material of column activated coke granulating system provided by the invention is conveyed using pneumatic pipe, reduces transhipment link,
Environmental suitability is strong, and using valve transfer convenient for control, reserved cecum is easy to extend；
(3) the caching feed bin of column activated coke granulating system provided by the invention is equipped with inert gas shielding mechanism, by slow
Inert gas is sprayed into material stock storehouse, making to cache inside feed bin can not fire in starvation environment to reach powder in protecting bin
The purpose of burning avoids dust spontaneous combustion risk in feed bin；
(4) column activated coke granulating system provided by the invention uses weighing silo static weighing, raw material proportioning Scientific Measurement, essence
Really proportion, weigh hopper, which sets counterweight verification platform periodic calibration, ensures weighing precision；
(5) the spiral kneader of column activated coke granulating system provided by the invention is in tilted layout, mixing, kneading, transmission process
Synchronous to carry out, pelletizer continuous granulation, kneading granulating working procedure sets steam tracing and avoids tar condensing, mediates granulation efficiency height, product
Matter is stablized；
(6) column activated coke granulating system provided by the invention sets screening machine Inspection graduation, and unqualified material returns to granulating working procedure and follows
Ring is granulated, and qualification material can just enter downstream process, substantially ensures product quality；
(7) material transfer of column activated coke granulating system provided by the invention, handling the hermetically sealed processing of link, powder by, unload
Shots are equipped with environmental dust removal, and operating environment is friendly, and the Fully-mechanized production of whole system, instrument metering avoid human factor pair
The interference of system stability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow chart of column activated coke granulating system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of column activated coke granulating system provided in an embodiment of the present invention；
In figure: 1, pneumatic conveying main pipe, 2, main pipe shut-off valve, 3, pneumatic conveying branch pipe, 4, branch pipe shut-off valve, 5, enlarging cecum,
6, feed bin, 7, high charge level switch, 8, low level switch, 9, caching feed bin gate valve, 10, frequency conversion rotatory feeder valve, 11, title are cached
Heavy burder storehouse, 12, annular inert gas tube, 13, nozzle, 14, temperature sensor, 15, roof scrubber, 16, hopper wall vibrator,
17, weighing sensor, 18, check code platform, 19, weighing silo gate valve, 20, spiral kneader, 21, screw conveyor, 22,
Returning charge bucket elevator, 23, rolling granulating machine, 24, screening machine, 25, remittance material belt type conveyer, 26, weighing belt.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
As Figure 1-Figure 2, the present embodiment provides a kind of column activated coke granulating systems, including Pneumatic Feeder, ingredient to fill
It sets, mediate prilling granulator, recycling material-returning device and summarize conveying device, the discharge port and ingredient of the Pneumatic Feeder fill
The feed inlet connection set, the discharge port of the proportioner is connect with the solid powder import for mediating prilling granulator, described
The discharge port for mediating prilling granulator is connect with the feed inlet of the circulation material-returning device；The qualification of the circulation material-returning device
Material outlet is connect with the receiving opening for summarizing conveying device, the outlet of unqualified material and the kneading of the circulation material-returning device
The returning charge import of prilling granulator connects.The high production efficiency of column activated coke granulating system provided in this embodiment, product property
Stablize, the Fully-mechanized production of whole system, instrument metering avoid human factor from not meeting the interference of system stability simultaneously
The column finished product material of granularity requirements is back to mediate in prilling granulator and be granulated again by circulation material-returning device.
Further, as Figure 1-Figure 2, the Pneumatic Feeder includes pneumatic conveying main pipe 1 and several strengths
One end of delivery branch pipe 3, each pneumatic conveying branch pipe 3 is connect with the pneumatic conveying main pipe 1, the other end with it is corresponding described
Proportioner connection；Branch pipe shut-off valve 4 is equipped on each pneumatic conveying branch pipe 3.Pneumatic conveying described in the present embodiment is female
One end of pipe 1 is connect with the feeding machanism of the Pneumatic Feeder, the other end be enlarging cecum 5, extend cecum 5 end cap with
Pneumatic conveying main pipe 1 uses flanged joint, is readily disassembled spreading, spreading pneumatic conveying main pipe 1 when for system enlarging；And strength
It conveys main pipe 1 and is equipped with main pipe shut-off valve 2.
The pneumatic conveying main pipe 1 of the present embodiment, pneumatic conveying branch pipe 3, branch pipe shut-off valve 4 and main pipe shut-off valve 2 bore
Adjustable according to setting conveying capacity, the height material position of main pipe shut-off valve 2 and branch pipe shut-off valve 4 and caching feed bin 6 interlocks, when expecting in storehouse
Main pipe shut-off valve 2 is opened when position is lower than low material position setting value and branch pipe shut-off valve 4 is fed, when material position is higher than high charge level in storehouse
Main pipe shut-off valve 2 is closed when setting value and branch pipe shut-off valve 4 stops feed.
Further, as Figure 1-Figure 2, the proportioner includes caching feed bin 6 and weighing silo 11, the caching
The feed inlet of feed bin 6 is connect with the discharge port of the Pneumatic Feeder, and the discharge port of the caching feed bin 6 passes sequentially through caching
Feed bin gate valve 9 and frequency conversion rotatory feeder valve 10 are connect with the feed inlet of the weighing silo 11, and the weighing silo 11 goes out
Material mouth is connect by weighing silo gate valve 19 with the solid powder import for mediating prilling granulator.Feed bin is cached in the present embodiment to insert
10 chain startup and stop of plate valve 9 and frequency conversion rotatory feeder valve forms shutdown and flow adjustment effect to material stream；Cache feed bin plate
Valve 9 eases up material stock storehouse gate valve 9 as electric and pneumatic form.
Further, as Figure 1-Figure 2, the top of the caching feed bin 6 is equipped with for in the caching feed bin 6
The roof scrubber 15 that dusty gas is discharged after being filtered, the bottom of the caching feed bin 6 were equipped with along caching 6 outer wall of feed bin week
To equally distributed hopper wall vibrator 16.Roof scrubber 15, which is filtered solid powder fugitive dust, in the present embodiment makes solid powder
Dirt falls into caching feed bin 6 again, and pure air is discharged into atmosphere to promote feed bin internal pressure to balance and avoid flour dust overflow.
Further, the bottom of the caching feed bin 6 is equipped with along the circumferentially equally distributed hopper wall vibrator 16 of bulkhead, bulkhead
16 periodic vibration of vibrator ensures that material is in loose condition (of surface), convenient for flowing in storehouse.
Further, the side wall at 6 top of caching feed bin is equipped with high charge level switch 7, caching 6 bottom of feed bin
Side wall is equipped with low level switch 8, and high charge level switch 7 and low level switch 8 can timely feedback the material position letter in caching feed bin 6
Breath expects caching to turn on or off branch pipe shut-off valve 4 and main pipe shut-off valve 2 according to the material position information in caching feed bin 6
Storehouse 6 is fed or stops being fed.
Further, as Figure 1-Figure 2, inert gas shielding mechanism, the indifferent gas are equipped in the caching feed bin 6
Body protection mechanism includes the annular inert gas tube 12 being circumferentially arranged along caching 6 inner wall of feed bin, the annular indifferent gas
Several inert gas nozzles 13 are connected on Ti Guan 12.
Further, the annular inert gas tube 12 is equipped with solenoid valve, is equipped with temperature in the caching feed bin 6
Sensor 14, solenoid valve and temperature sensor 14 form chain, the temperature sensor when temperature of charge is gathered to setting value in storehouse
14 alarm solenoid valves automatically open, and inert gas, which sprays into storehouse, to be made to cache inside feed bin 6 in starvation environment to reach
The purpose that powder can not burn in protecting bin；
Further, as Figure 1-Figure 2, the weighing silo 11 is equipped with weighing sensor 17 and for placing standard test weight
The check code platform 18 periodically calibrated to 11 precision of weighing silo, material intermittence are fed in weighing silo 11 complete
Full stationary state, which carries out weighing, ensures weighing precision, and the material for completion of weighing passes through the weighing material that 11 discharge port of weighing silo connects
The control of storehouse gate valve 19 opening and closing is to feed kneading prilling granulator, and check code platform 18 is for placing standard test weight periodically to weighing
11 precision of feed bin is calibrated.
Further, as Figure 1-Figure 2, the kneading prilling granulator includes spiral kneader 20, rolling granulating machine 23
And the spiral shell of the entrance for the paste mixture come out from 20 discharge port of spiral kneader to be delivered to rolling granulating machine 23
Conveyer 21 is revolved, the entrance of the spiral kneader 20 is connect with the discharge port of the proportioner；The rolling granulating machine 23
Discharge port with it is described circulation material-returning device feed inlet connect.
The spiral kneader 20 in the present embodiment is double-screw shaft, and helical axis is at an angle to the horizontal surface arrangement,
And delivery end is higher than feed end, the raw materials such as coal dust, coke powder, tar, water are added from feed inlet, and mixture is in kneader from lower past
Upper flowing conveys progress synchronous with kneading, and spiral kneader 20 is totally-enclosed form, avoids dirt excessive.
Screw conveyor 21 described in the present embodiment is used for the transhipment between double-shaft spiral kneader 20 and rolling granulating machine 23,
Screw conveyor 21 is horizontally disposed, and screw conveyor 21 is closing form, and cavity closing, tail portion top sets returning charge import, returning charge
Import is tried orchid and is connect with 22 discharger slip awaing tube of returning charge bucket elevator.
Column punch die and mill disc are set in rolling granulating machine 23 described in the present embodiment, mill disc periodic rolls paste mixing
Material forms column granulation material by column mold.
Further, spiral kneader 20 and rolling granulating machine 23 are equipped with vapor interface, and the vapor interface is connected with
Steam access tube；High-temperature steam protects the tar that spiral kneader 20 is added by being heated in pipeline to equipment cavity
It will not condense, influence kneading and granulation outcome to avoid tar condensing.
Further, as Figure 1-Figure 2, the circulation material-returning device includes screening machine 24 and returning charge bucket elevator 22, institute
The feed inlet for stating screening machine 24 is connect with the discharge port of the rolling granulating machine 23, the qualified material outlet of the screening machine 24 and institute
State the receiving opening connection for summarizing conveying device, the charging of unqualified the material outlet and the returning charge bucket elevator 22 of the screening machine 24
Mouth connection, the discharge port of the returning charge bucket elevator 22 are connect with the returning charge import of the screw conveyor 21.
The sieve of screening machine 24 described in the present embodiment is column strip hole, and the returning charge bucket elevator 22 is connected with screenings interface,
The screw conveyor 21 that unqualified fine granules after screening are included to kneading prilling granulator through 22 vertical-lift of returning charge bucket elevator
Top is returned to by discharger slip awaing tube and mediates prilling granulator.
Further, as Figure 1-Figure 2, the conveying device that summarizes includes remittance material belt type conveyer 25, weighing belt 26
And verification chain code；The remittance material belt type conveyer 25 is at certain angle of inclination arrangement, to exclude a small amount of moisture of zone face, converges and expects
The conveyer belt of belt conveyor 25 uses Chevy Trucks' anti-slip, and the material belt type conveyer 25 that converges is equipped with for receiving the circulation
Multiple receiving openings of the qualified material of material-returning device output, each receiving opening set to be formed from depositing dust deflector chute and seal, anti-flour dust overflow；
Weighing belt is set after remittance shots are all to measure so that subsequent handling carries out energy the column granulation material for being delivered to subsequent handling
Power is adjusted；
In the present embodiment, weighing belt 26 and verification chain code be located at converge material belt type conveyer 25 discharge end it is i.e. all by shots it
Afterwards, to ensure metering material amount for the amount of summarizing, weighing belt 26 hangs on skin by hydraulic lift from tape verifying chain code, chain code
Band top, periodically calibrates weighing belt 26.
Embodiment two
As depicted in figs. 1 and 2, the present embodiment provides a kind of column activated coke prilling process, the column provided using embodiment one
Activated coke granulating system, the prilling process include the following steps:
Granulating system includes Pneumatic Feeder, proportioner, mediates prilling granulator, circulation material-returning device and summarize conveying dress
Set, when system is actuated for being granulated, form each device of system according to: summarize conveying device → circulation material-returning device → kneading and make
Grain device → proportioner → Pneumatic Feeder sequence successively starts against material stream direction；
1) after granulating system starting, fineness reaches the solid materials such as the coal dust of requirement, coke powder using compressed air as power in pipe
Gas-solid mixture stream is formed in road, gas-solid mixture stream is delivered to caching through pneumatic conveying main pipe 1 and strength delivery branch pipe 3
In feed bin 6, main pipe shut-off valve 2 and branch pipe shut-off valve 4 are respectively equipped in pneumatic conveying main pipe 1 and strength delivery branch pipe 3 so as to root
Need to control the conveying capacity toward corresponding caching 6 conveying solid substance powder of feed bin according to system；
2) it is settled and is stored in caching feed bin 6 under the effect of gravity by the solid powder that strength is blowed to caching feed bin 6, blanking
The dust laden air raised solid dust after the filtering of roof scrubber 15 is deposited in caching feed bin 6, pure air emptying；
3) being stored in the material of caching feed bin 6, buffered feed bin gate valve 9 and frequency conversion rotatory feeder valve 10 are uniformly discharged into weighing again
It weighs in feed bin 11, the intermittent shutdown material stream of caching feed bin gate valve 9 ensures weighing silo 11 in totally stationary state
Lower weighing, solid powder feeds spiral kneader 20, while the liquid such as tar and water in weighing silo 11 after the completion of single weighing
Raw material is sent into spiral kneader 20 by pre-set proportion and completes blending process；Solid powder single weighs according to system
Setting is adjusted by the material stock storehouse gate valve 9 that eases up of frequency conversion rotatory feeder valve 10, and single weighing data real-time monitoring is to really
Tar and water is protected to follow up in time adjusting；
4) it is former that the solid powders and tar, water etc. such as coal dust, coke powder in double-shaft spiral kneader 20 liquid are quantitatively fed according to the ratio
Material is mixed well in spiral kneader 20, is squeezed, so that solid powder and liquid charging stock be made to form the paste that can be used for being granulated
Mixture, paste mixture are delivered in rolling granulating machine 23 by screw conveyor 21, are periodically rolled, shear and make paste
Mixture forms short cylindrical shape granulation material by column punch die；
5) the column material formed after mediating and being granulated is classified by screening machine 24, and the column material for meeting granularity requirements is fed
It converges material belt type conveyer 25, does not meet the materials of granularity requirements through returning charge bucket elevator 22 and be back to spiral transferring before rolling granulating machine 23
It send and is again introduced into pelletizer in machine 21 and carries out circulation granulation, so ensure that the column material into downstream process all meets granularity and wants
It asks；The pelletizing finished product material of granularity qualification, which is discharged on remittance material belt type conveyer 25, goes successively to the other processes after being granulated, and zone face is set
The anti-column material of Chevy Trucks skids, and weighing belt 26 and chain code correcting device are set after all remittance shots to feeding subsequent handling
Column finished product material is measured.
Column activated coke prilling process provided in this embodiment has production environment cleaning, dust emission qualification, production effect
The feature that rate is high, product property is stable；The Fully-mechanized production of whole system, instrument metering, avoid human factor from stablizing system
The interference of property.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of column activated coke granulating system, it is characterised in that: including Pneumatic Feeder, proportioner, mediate granulation dress
It sets, recycle material-returning device and summarize conveying device, the discharge port of the Pneumatic Feeder and the feed inlet of proportioner connect
It connects, the discharge port of the proportioner is connect with the solid powder import for mediating prilling granulator, and the kneading is granulated
The discharge port of device is connect with the feed inlet of the circulation material-returning device；The qualified material outlet of the circulation material-returning device with it is described
Summarize the receiving opening connection of conveying device, returning for prilling granulator is mediated with described in the unqualified material outlet of the circulation material-returning device
Expect import connection.
2. a kind of column activated coke granulating system as described in claim 1, it is characterised in that: the Pneumatic Feeder includes
Pneumatic conveying main pipe and several pneumatic conveying branch pipes, one end of each pneumatic conveying branch pipe and the pneumatic conveying main pipe connect
It connects, the other end is connected with the corresponding proportioner；Branch pipe shut-off valve is equipped on each pneumatic conveying branch pipe；The gas
Power conveys main pipe and is equipped with main pipe shut-off valve, and the end of the pneumatic conveying main pipe is cecum.
3. a kind of column activated coke granulating system as described in claim 1, it is characterised in that: the proportioner includes caching
The feed inlet of feed bin and weighing silo, the caching feed bin is connect with the discharge port of the Pneumatic Feeder, the caching material
The discharge port in storehouse passes sequentially through caching feed bin gate valve and frequency conversion rotatory feeder valve is connect with the feed inlet of the weighing silo, institute
The discharge port for stating weighing silo is connect by weighing silo gate valve with the solid powder import for mediating prilling granulator.
4. a kind of column activated coke granulating system as claimed in claim 3, it is characterised in that: set at the top of the caching feed bin
There are the roof scrubber for being discharged after being filtered to the dusty gas in the caching feed bin, the bottom of the caching feed bin
Equipped with along the circumferentially equally distributed hopper wall vibrator of caching feed bin outer wall.
5. a kind of column activated coke granulating system as claimed in claim 3, it is characterised in that: be equipped in the caching feed bin lazy
Property gas protection mechanism, the inert gas shielding mechanism includes along the annular indifferent gas that is circumferentially arranged of caching feed bin inner wall
Body pipeline, it is described annular inert gas duct on be connected with several inert gas nozzles.
6. a kind of column activated coke granulating system as claimed in claim 3, it is characterised in that: the weighing silo is equipped with weighing
Sensor and the check code platform that periodically the weighing silo precision is calibrated for placing standard test weight.
7. a kind of column activated coke granulating system as described in claim 1, it is characterised in that: the kneading prilling granulator includes
Spiral kneader, rolling granulating machine and for the paste mixture come out from spiral kneader discharge port to be delivered to and rolls
The entrance of the screw conveyor of the entrance of pelletizer, the spiral kneader is connect with the discharge port of the proportioner；It is described
The discharge port of rolling granulating machine is connect with the feed inlet of the circulation material-returning device.
8. a kind of column activated coke granulating system as claimed in claim 7, it is characterised in that: the spiral kneader and described
Vapor interface is equipped on rolling granulating machine, the vapor interface is connected with steam access tube.
9. a kind of column activated coke granulating system as described in claim 1, it is characterised in that: the circulation material-returning device includes
Screening machine and returning charge bucket elevator, the feed inlet of the screening machine are connect with the discharge port for mediating prilling granulator, the screening
The qualified material outlet of machine is connect with the receiving opening for summarizing conveying device, and the unqualified material outlet of the screening machine is returned with described
Expect the feed inlet connection of bucket elevator, the discharge port of the returning charge bucket elevator is connect with the returning charge import for mediating prilling granulator.
10. a kind of column activated coke prilling process, which comprises the steps of:
1) solid powder forms gas-solid mixture stream using compressed air as power in pipeline, and gas-solid mixture stream is through gas
Power conveying main pipe and strength delivery branch pipe are delivered in corresponding caching feed bin, as desired by the mother in pneumatic conveying main pipe
The conveying capacity of branch pipe shut-off valve control solid powder on pipe shut-off valve and strength delivery branch pipe；
2) it blows to the solid powder of caching feed bin to settle under the effect of gravity and be stored in caching feed bin, the dust-laden that blanking raises
Air solid dust after roof scrubber filters is deposited in caching feed bin, pure air emptying；
3) be stored in caching feed bin in solid powder buffered feed bin gate valve and frequency conversion rotatory feeder valve are uniformly discharged into weighing again
It weighs in feed bin, caching feed bin gate valve intermittence shutdown material stream ensures that weighing silo is called in the following text in totally stationary state
Weight, solid powder feeds spiral kneader in weighing silo after the completion of single weighing, while liquid charging stock is matched as pre-set
Blending process is completed than being sent into spiral kneader；
4) solid powder and liquid charging stock are mixed well in spiral kneader, are squeezed, to make solid powder and liquid charging stock
The paste mixture that can be used for being granulated is formed, paste mixture is delivered in rolling granulating machine by screw conveyor, through the period
Property roll, shear make paste mixture by column punch die formed column granulation material；
5) column granulation material is classified by screening machine, and the column material for meeting granularity requirements feeds remittance material belt type conveyer, is led to
It crosses weighing belt and verification chain code measures the column finished product material for feeding subsequent handling, do not meet the column finished product of granularity requirements
Material is back in screw conveyor through returning charge bucket elevator carries out circulation granulation.
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| CN201811578099.8A CN109395664A (en) | 2018-12-24 | 2018-12-24 | A kind of column activated coke granulating system and method |
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